Add more example usage

pages/index.tsx

@@ -1,8 +1,63 @@
-import Button from '@mui/material/Button'
+import MuiButton from '@mui/material/Button'
+import styled from 'styled-components'
 import type { NextPage } from 'next'
 
 const Home: NextPage = () => {
-  return <Button variant="contained">Hey! 😁</Button>
+  return (
+      <Buttons>
+        <MuiButton variant="contained">MUI button! 💎</MuiButton>
+        <CustomMuiButton variant="contained">
+          Custom MUI button! 💙
+        </CustomMuiButton>
+        <ScButton>SC button! 💅</ScButton>
+      </Buttons>
+  )
 }
 
+const Buttons = styled.div`
+  position: fixed;
+  top: 0;
+  right: 0;
+  bottom: 0;
+  left: 0;
+  display: flex;
+  align-items: center;
+  flex-direction: column;
+  justify-content: center;
+
+  > *:not(:last-child) {
+    margin-bottom: 16px;
+  }
+`
+
+const CustomMuiButton = styled(MuiButton)`
+  color: rgba(0, 0, 0, 0.87);
+  background-color: #83e8ff;
+  border-radius: 20px 0;
+  text-transform: none;
+  font-size: 16px;
+  letter-spacing: 1px;
+  padding: 8px 16px;
+
+  :hover {
+    background-color: #b5f1ff;
+  }
+`
+
+const ScButton = styled.button`
+  cursor: pointer;
+  font-family: 'Roboto', sans-serif;
+  color: rgba(0, 0, 0, 0.87);
+  border-radius: 100px;
+  padding: 0 20px;
+  line-height: 48px;
+  text-align: center;
+  font-size: 14px;
+  font-weight: 500;
+  letter-spacing: 1px;
+  background-color: #ffa4ff;
+  border: none;
+  user-select: none;
+`
+
 export default Home